DIY_EFI Digest Monday, 18 November 1996 Volume 01 : Number 349 In this issue: Re[2]: Electrohydraulic Camless Valves Re:book Re: Lambda Sensors.... See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- From: dzorde@xxx.au Date: Mon, 18 Nov 96 09:16:47 Subject: Re[2]: Electrohydraulic Camless Valves Thanks all who replied (both on and off the list), can't wait to read it. Dan dzorde@xxx.au ______________________________ Reply Separator _________________________________ Subject: Re: Electrohydraulic Camless Valves Author: diy_efi@xxx.edu at INTERNET Date: 11/15/96 4:08 PM Dan, your copy of the article is in the mail john carroll On Thu, 14 Nov 96 08:59:12 dzorde@xxx.au wrote: > > Can't find the magazine anywhere in the local newsagents in OZ, is it > available somewhere on the web ? Or could someone possibly scan it > and email it to me (it can't be considered breach of copyright if the > magazine is not available in the first place). > > Dan dzorde@xxx.au > > >______________________________ Reply Separator _________________________________ >Subject: Electrohydraulic Camless Valves >Author: diy_efi@xxx.edu at INTERNET >Date: 11/12/96 11:53 PM > > > >There was a thread a few months ago about electrically controlled valves. > > >The November 7 issue of MACHINE DESIGN magazine has an article about Ford's >effor ts in that direction. The article claims they can operate 16 valves with >125 wat ts plus some hydraulic power.. > >The concept is elegant. My complements to the designers. > >With a small electric blower on the intake manifold they should be able to do >awa y with the electric starter, No cam shaft or gearing is needed. The >battery siz e can be reduced. > >Everyone should find a copy of this article. I bet we will see more of this in >t he future. > > >john carroll >------------------------------------- >jac@xxx.us > 11/13/96 00:11:33 > > > > - ------------------------------------- jac@xxx.us 11/15/96 16:08:12 ------------------------------ From: Frank F Parker Date: Sun, 17 Nov 1996 20:28:22 -0500 (EST) Subject: Re:book > From: Frank Parker Date: Fri, 15 Nov 1996 08:38:25 -0500 > (EST) Subject: Re: Lambda Sensors.... > Much more in an excellent book by Ronald Jung, available from SAE, called > "Automotive Electronics". LArge chapter on O2 sensors and all > other auto electronics. Can get ISBN # of there is interest of group. > > Frank- I'm interested in any info on this book you could provide. Thanks. > > Todd, Well I was sorta close: The book is " Aotomotive Electronics Handbook" by Ronald Jurgen, a McGraw-Hill book, ISBN #: 0-07-033189-8. It's pretty expensive at about $90 but worth it for the excellent background on a wide range of topics. Jurgen is the editor. The O2 sensor chapter was written by chief O2 sensor engineer at Bosch. Also excellent chapters on flow and knock sensors. Should be available at good university library. Frank Parker > ------------------------------ From: Darrell Norquay Date: Mon, 18 Nov 1996 04:38:04 GMT Subject: Re: Lambda Sensors.... At 03:41 PM 11/15/96 -0500, Frank/G.speed wrote: >> Now, I don't understand the difference in a $5000+ Horiba oxygen >> sensor and a $30 Bosch for regular cars. I mean, I know a good >> sensor has a wide range and can tell you the exact A/F ratio. But >> why are they so expensive. Please, get techical if you have to. >> I'd love to learn more. One of the major differences is in the economy of scale. You can bet there are millions of the $30 types sold, but probably only a few thousand of the Horiba's. The more ya make, the cheaper they get. Another would be the close tolerances and individual testing / calibration required on the analyzer sensor, whereas the garden variety production unit just has to be close enough to meet emissions requirements. regards dn dnorquay@xxx.com ------------------------------ End of DIY_EFI Digest V1 #349 ***************************** To subscribe to DIY_EFI-Digest, send the command: subscribe diy_efi-digest in the body of a message to "Majordomo@xxx. A non-digest (direct mail) version of this list is also available; to subscribe to that instead, replace "diy_efi-digest" in the command above with "diy_efi".